A

B

Bit

The basic unit of storage for information in a computer system; a binary digit which can be either 0 or 1. Bits are represented by the presence or absence of changes in orientation of the magnetic domains along a track on the storage media.

C

D

Defects

Irregularities inherent in thin-film magnetic layers that cause data to be recorded inaccurately. As track widths decrease, smaller defects can produce errors that would not otherwise cause on a wider track.

Disk Drive

The primary data storage device used by computers. Disk drives are used to record, store and retrieve digital information in a computer system.

I

Inductive thin-film head

An electromechanical device that records (writes) on and retrieves (reads) data from the magnetic recording layer of the disk drive. Inductive heads read and write data using a conductive coil wrapped around a very small magnetic stylus.

Inductive thin-film media

Hard disks with recording surfaces optimized for use with inductive thin-film or ferrite recording heads.

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